ETE RIO BRILHANTE II - Secondary Wastewater Treatment in Rio Brilhante, Mato Grosso do Sul

ETE RIO BRILHANTE II is a wastewater treatment plant located in Rio Brilhante, a municipality in the state of Mato Grosso do Sul, Brazil. The plant serves a small population of 340 residents, reflecting its role in a rural or small urban community. It operates under Brazil's national environmental regulations, which set standards for effluent quality and water resource protection. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. The plant's discharge volume of 167.26 m³/day indicates its scale. Brazilian regulations for small communities often require secondary treatment to protect receiving water bodies, aligning with the plant's current treatment level. The treated effluent is discharged into local watercourses that ultimately drain into the Paraná River basin, a major hydrological system in South America. The region's aquatic ecosystems depend on proper wastewater management to maintain water quality and biodiversity. The plant's operation contributes to reducing pollution loads in the local watershed.

The plant discharges into streams that flow into the Rio Brilhante, a tributary of the Ivinhema River, which joins the Paraná River. The Paraná River basin supports diverse aquatic life and is ecologically sensitive, with floodplains and wetlands that provide habitat for fish and migratory birds. Proper treatment helps protect these downstream ecosystems from nutrient enrichment and organic pollution.